Finding the Fourth Proportional to 23,035.50, 31,789.02 and 13,099.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,035.50 : 31,789.02 = 13,099.50 : x
2. Step 2: Convert to fraction form
   23,035.50/31,789.02 = 13,099.50/x
3. Step 3: Cross multiply
   23,035.50x = 31,789.02 × 13,099.50
4. Step 4: Simplify right side
   23,035.50x = 416,420,267.49
5. Step 5: Solve for x
   x = 416,420,267.49/23,035.50
6. Step 6: Final answer
   x = 18,077.33